new body... old code

After running into issues with the old chassis, I spent a weekend with my father working on a new chasis.

We used the designs from Willow Garage's Turtlebot to trace the discs and the drill holes, and even ordered the less expensive shift standoff kit from iheartengineering.com.

This video is a re-run of the bump-navigation code from the last video on the new body. There's significantly less issues with strange corners hitting obstacles before the bump sensors (though this is a non-issue with a better obstacle detection approach).